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Requires a key on both the
inside and outside to lock and unlock the door. Best suited for
doors that have glass panes on or near the door. Prevents an
intruder from breaking the glass and reaching in to unlock the
door. Recommended for use on businesses to secure doors after
hours when the building is unoccupied. Extreme caution should be
used when installing double cylinder locks on homes or
apartments. Always check local building codes and make
provisions to have a key hanging nearby or have at least one
other door that does not require a key to exit. You should also
consider using Medeco's captive thumbturn deadbolt. |